Disposable syringe



Dec. 15, 1959 c. J. MILTON DISPOSABLE SYRINGE Filed March 24, 1958 CHARLES J. MILTON 8% ATTORNEY;

United States Patent DISPOSABLE SYRINGE Charles J. Milton, Coral Gables, Fla. Application March 24, 1958, Serial No. 723,414 4 Claims. (Cl. 128-227) The present invention relates to a new and improved disposable medicated hygienic kit.

An important object is to provide a disposable syringe assembly in the form of a bag or liquid container having an open top or mouth, and a closed bottom to which is connected a flexible tube that communicates with the interior of the bag for withdrawing the liquid therefrom. A rupture pouch or receptacle is releasably connected to the inner wall of the bag adjacent the top thereof and is of such size and shape as to hold a correct amount of medication, such as an antiseptic or germicidal agent. The discharge tube is operatively connected to the pouch so that upon pulling the outer free end portion of the tube "the pouch will be ruptured or torn so as to cause the contents thereof to mix with the liquid in the bag.

Another object consists in releasably securing a piece or strip of suitable material to the inside of the bag so that it will coact with the inner wall of the bag to form a pouch or pocket which may be filled with any suitable medication having the desired antiseptic or germicidal properties which, when mixed with the liquid or water in the bag, will provide a solution of the proper strength. The piece of material is connected to the discharge tube in such manner that upon downward movement of the outer portion of the tube relative to the bag it will cause the lower portion of the piece of material to be separated from the bag, and thus allow the contents of the pouch to be discharged therefrom and mixed with the water or liquid in the bag.

Other objects and advantages of the invention will become apparent from the following description, when taken in conjunction with the accompanying claims and drawings.

Referring to the drawings, in which is shown a preferred embodiment the invention may assume Fig. 1 is a perspective view of the syringe assembly in its open position and constructed in accordance with the present invention.

Fig. 2 is a front view of the syringe assembly in its closed position and showing its connection to a support through a drawstring attachment.

Fig. 3 is an enlarged detail view of the inside of the bag showing a piece of material releasably connected to the inner wall of the bag so as to coact therewith to form a rupture pouch and also showing the lower end portion of the material moved away from the bag.

Fig. 4 is a sectional view substantially along the line 44 of Fig. 1 and showing the pouch in its closed position and the connection of the discharge tube with the pouch through a flexible member.

Fig. 5 is a view similar to Fig. 4 but showing the outer portion of the discharge tube moved downwardly relative to the bag so as to cause the rupture of the pouch and the discharge of the medication therein into the liquid in the bag.

Referring to the drawings, indicates a liquid container in the form of a flexible bag made of any suitable water-proof durable, pliable material and which may be of any desired size or shape. The bag 10 has an open top or mouth 11 and is provided with collapsible confronting side portions 12 so that it may be readily expanded or collapsed. The upper open end of the bag is folded over downwardly and outwardly upon itself to form a depending hem 13 between which and the adjacent surface of the bag, is positioned a drawstring 14 that is provided on opposite sides with. outwardly and upwardly projecting loops 15 which, when the mouth of the bag is closed, may be connected to a suitable support or hook 16 (Fig. 2) as at 17. The hem 13 below the drawstring is secured to the inner adjacent surface of the bag in any suitable manner, such as by a heat seal, glue, cement, or the like. The bottom 18 of the bag has a depending tubular nipple 19 to which is fixedly secured one end of a flexible discharge tube 20, as at 21. The tube 20 is of any suitable length and at its opposite or outer free end 34 may be connected to a. nozzle tip 22, as at 23.

A pouch or receptacle 24 is releasably secured to the inner side of the bag 10, preferably about the level of the liquid or water 25 and adjacent the mouth 11 soas to provide a receptacle for holding a suitable medication, such as an antiseptic or germicidal agent 26. The pouch 24 is formed from a piece of material 27, such as plastic, oil or the like, of any desired size and shape, and which is shown of substantially square configuration. The Square piece 27 is releasably secured to the inner wall 28 of the bag (Fig. 3) by a line of suitable adhesive 29 so as to provide the free marginal side edge portions or flaps 30. A flexible member in the form of a string or tape 31 is connected at one end, as at 32, to the lower end of the free edge portion or flap 30 of the piece 27 and is of such length as to extend upwardly and over the top or mouth of the bag so as to provide a depending portion on the outside of the bag, which terminates in a loop or retaining means 33 (Fig. 2), through which loosely extends an intermediate portion of the flexible tube 20.

The pouch 24 containing the correct amount of medication is assembled with the other parts of the syringe or douche at the factory, and the bag normally assumes a small compact shape which can be easily handled, packed, and carried.

In operation, the bag 10 is normally collapsed and when opened assumes the position as shown in Fig. 1 of the drawing. The desired amount of water or other liquid is then poured into the bag and the drawstring is grasped at the loops 15 so as to close the top of the bag and the looped portions 15 are connected to the support 16 so that the drawstring serves not only as means for hanging the bag but also for closing the top thereof. The tube 20 is normally supported intermediate its ends by the loop 33 of the flexible member 31 adjacent the top of the bag so as to prevent the liquid or water from flowing out of the tube when the bag is being filled with the liquid.

When the bag assembly has been filled and is supported by the member 16, as shown in Fig. 2, an intermediate portion of the tube 20 is connected to the flexible member 31 and is provided with an outer portion 34. Upon pulling or moving the outer portion 34 of the tube downwardly in the direction of the arrow 35 (Fig. 4), this movement will cause the inner portion of the string 31 to be raised, with the result that the lower portion of the flap 30 of the piece 27 will be released from sealing engagement with the bag, and thus cause the bottom of the pouch to open so that the contents thereof mixes with the water or other liquid in the: bag. After the medication has mixed with the liquid and prior to use of the solution, the tube 20 and nozzle tip 22 may be inserted inside the bag, so that the noule may be pact disposable syringe assembly is provided, which,

when once used, may be discarded, and which may be made at a minimum of expense, of time, eifort, and

cost. a

It will be understood that the, form of the invention shown and described is merely illustrative of a preferred embodiment and that such changes may be made as come within the purview of the following claims.

' I claim:

1 A disposable syringe including a bag having a mouthfor-introducing liquid into the bag, a discharge tube connected to the bottom of the bag, said tube having an outer free end, a rupture pouch secured to the inside of the bag and having a suitable medication therein, and means operatively connecting said tube to said pouch so that upon pulling the outer free end of the tube downwardly relative to the bag causes the rupture of the pouch and the mixture of the medication therein wit the liquid in said bag.

2. A disposable syringe including a bag having a mouth for introducing liquid into the bag, a discharge tube connected to the bottom of the bag, said tube having an outer free end, a rupture pouch secured to the inside of the bag and having a suitable medication therein, a flexible member extending into said mouth and operatively connected to said pouch, and means connecting the outer free end of said tube to said flexible member outside of said bag so that upon pulling the outer free end of the tube downwardly relative to the bag causes the rupture of the pouch and the mixture of the medication therein with the liquid in said bag.

3. A disposable syringe including a bag having a mouth for introducing liquid into the bag, a discharge tube having an inner end connected to the bottom of the bag, said tube having an outer free end, the inside of the bag adjacent the top thereof having a piece of material releasably secured to the wall of the bag so as to coact therewith to form a rupture "pouch having a marginal free edge portion, said pouch having a suitable medication therein, a flexible member connected at one end to the lower free edge portion of said material and having its opposite end extended upwardly and over the top of the bag, and means for connecting an intermediate portion of said tube to said flexible member adjacent the top of the bag so that upon pulling the free end of the tube downwardly relative to the bag causes the piece of material to be released from the interior of the bag and allow'the contents of the pouch to mix with the liquid in the bag.

4. A disposable syringe assembly including a bag having a mouth for introducing liquid into the bag, a drawstring connected to the marginal sides of said mouth, a discharge tube having an inner end connected to the bottom of the bag and positioned outside thereof, said tube having an outer free end portion provided with a nozzle tip, the inside of the bag adjacent the mouth having a piece of plastic material releasably secured thereto so as to form therewith a rupture pouch for receiving a suitable medication, a flexible member connected at one end to the lower end of said material and having its opposite end extended upwardly and over the mouth of the bag, and means for loosely connecting an intermediate portion of the tube to said flexible member adjacent the mouth of the bag, so that upon moving the free end of the tube downwardly relative to the bag causes the lower end of said material to be released from the bag and the contents of the pouch to mix with the liquid in the bag prior to the discharge of the liquid through the tube.

References Cited in the file of this patent UNITED STATES PATENTS 927,826 Breitmcyer July 13, 1909 2,568,915 Friedman Sept. 25, 1951 2,629,377 Parks Feb. 24, 1953 2,664,891 Kempel Jan. 5, 1954 2,800,905 Simmons et al. July 30, 1957 

